Inking mechanism for printing machines



Jan. 22, 1935. F. LAMATSCH INKING MECHANISM FOR PRINTING MACHINES Filed Sept. 14, 1932' a Sheets-Sheet 1 3 r. L FURL .rl l l l ll lrr l lll n "In"! Jan. 22, 1935. F. LAMATSCH 1,988,454

' INKING MECHANISM FOR PRINTING MACHINES Filed Sept. 14, 1932 5 Sheets-Sheet 2 Lm .J I|| 5 Sheets-Sheet 3 J I llewllllflvll i I H R M u s amm 2 HF: m h E v N m I \E m IQII IIIININWI IQ WINIIQIIIIIGI l W w om & HIV Hm Jan. 22, 1935. F. LAMATSCH INKING MECHANISM FOR PRINTING MACHINES Filed Sept. 14, 1932 Patented Jan. 22, 1935 INKING MECHANISM FOR PRINTING MACHINES Frederick Lamatsch, Grantwood, N. J., assignor to Irving Trust Company, permanent trustee for R. Hoe & 00., Inc., New York, N. Y., a corporation of New York Application September 14, 1932. Serial No. 633,070

Claims.

This invention in general relates to printing machines and more particularly to inking mechanism adapting a conventional printing machine to print in color.

The principal object of the invention is to provide an improved inking mechanism which may be attached to a printing machine in order to adapt it to print a portion of the product in a different color.

Another object is to provide an inking mechanism of the kind indicated which may be conveniently attached as an adjunct to a conventional printing machine so that same may print in color in addition to printing in black.

It is also an object of the invention to provide a color inking'mechanism of generally im proved construction, whereby the device will be simple, durable and inexpensive in construction, as well as convenient, practical, serviceable and eflicient in its use.

With the foregoing and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts, and in the details of construction hereinafter described and claimed.

The preferred embodiment of the invention is in the accompanying drawings, wherein:

Figure 1 is a sectional view, partly in elevation, of an embodiment of the invention; taken on line 11 of Figure 2, as seen in the direction of the arrows;

Figure 1A is a continuation of Figure 1;

Figure 2 is a top plan view of the device as seen in the direction of arrow 2 of Figure 1;

Figure 2A is a continuation of Figure 2, and is a fragmentary top plan view of parts shown in Figure In, as seen in the direction of the arrow 2A of Figure 1A.

Figure 3 is a transverse sectional view taken on line 3-3 of Figure 1;

Figure 4 is a fragmentary plan elevational view of the device as seen in the direction of the arrow 4 of Figure 5; and

Figure 5 is a side elevational view of the invention.

In the drawings wherein similar characters of reference indicate corresponding parts in the several views of the preferred form of the invention, the numeral 10 designates an ink pump assembly or pressure feed mechanism which may be detachably fastened in any suitable manner to a cover plate 11 secured to an ink rail 12 of a printing machine as by screws 13. The assembly 10 is connected to an ink supply tank or reservoir 14 by a pipe 15, the flow of ink from the said reservoir being controlled by a valve or cock 16.

The ink pump assembly 10 which may be of the general type shown by Patent No. 1,348,900, dated August. 10, 1920, of Schmidt, is provided with a cover 17 fastened to a casing 18 by screws 19. In the lid or cover 17 are threadedly secured adjustable stops 22, having knurled heads 23 and serving as abutments for plungers 24, the stems of which pass through an eccentric driven or oscillating frame 25 having sockets or bearings 26, adapted to receive eccentric shafts 27, provided with similar gears 28 at one end, each of the gears 28 being engaged by a gear 29, fastened to a shaft 30 connected to a flexible shaft 30' which may be operatively connected to any driven member of the printing machine, as best shown in Figures 4 and 5.

The lower ends of the plungers 24 which are normally pressed upwardly by springs 31 arranged thereon and confined between a collar on each of the said plungers and the top of the frame in well-known manner, are received in a sliding plate 32 connected by pins 33 to the upper oscillating frame 25. The pins 33 are secured in the oscillating frame and slide in bushings 32' secured tothe sliding plate 32. The plate 32 is slidably mounted on a pair of plates or bars 34, 35, each of which is fixed to the cover plate 11 of the ink rail 12 in any suitable manner as by the screws 36.

If it is desired to simultaneously cut off all the columns of a page, suitable means, such as that shown in Patent No. 1,348,900 of Schmidt, may be employed for sliding or adjusting the bars 34, 35 on the cover plate 11.

As well-known in this art, the stops 22 maybe turned or adjusted to variably limit the upward throw of any or all the plungers 24 in order to increase or decrease the amount of ink pumped for the required purpose.

The plates or bars 34, 35 are provided with inlet pockets or ports 37 and outlet or discharge channels 38 which communicate with conduits or pipes 41 secured in the cover plate 11, the said conduits 41 having nozzles 42 at one end which are arranged in ink-distributing passageways 43 formed in a cap piece or nozzle plate 44 which is detachably secured to the cover plate 11 by screws 45, which may be of the general character shown in Patent No. 1,644,723 of Halliwell. The passageways 43 communicate with outlet vents or openings 46 formed in the cap piece 44 and positioned adjacent an undercut portion of the under side of same.

As best shown in Figure 3, the ink rail 12 is provided with ink-conveying conduits 12' leading from a pump mechanism not shown to nozzles 47 which are adapted to diffuse ink over the inkreceiving drum 48. When the cover plate 11 and the force feed mechanism including the cap piece 44 fastened thereon are removed from the ink rail 12, which may be done by removing the screw 13, the nozzles 47 will be uncovered to flow or spread ink over the ink-receiving drum 48 in order to print in the usual manner in black.

When it is desired to print a portion of the sheet in another color, red, for example, the cover plate 11 with its coacting force mechanism and cap piece 44 maybe quickly and operatively-secured on the ink rail 12 by the screw 13, thereby sealing the nozzles 47 of the said ink rail 12 by the adjacent cover portion of the cover plate 11.

The force feed mechanism or ink pump assembly 10 may be energized by means of the flexible shaft 30 from any suitable driving element of the coacting printing machine. The red ink in the present instance will now be supplied to the nozzle plate 44 and diflused thence via the nozzles 46 over the drum 48. Transfer rolls 49 are engaged with the ink-receiving drum 48 and with a second ink distributing drum or cylinder 51 wherewith the form rolls 52 are engaged. ,Any suitable means instead of the cover plate formation shown may be employed to seal the nozzles 4'7, such as the cap piece shown in Figure 5 of Patent No. 1,589,148 dated June- 15, 1926, of Halliwell.

Ink pump assemblies as described above, may be quickly attached to as many ink rails of a conventional printing machine as desired and it will therefore be understood that in addition to the usual printing in black, a plurality of inks of different colors may be employed and multi-color printing produced, by leading the sheet through two or more printing units.

It will be understood that the invention may be embodied'in other specific forms without departing from the spirit or essential attributes thereof. and it is therefore desired the present embodiment be considered in all respects as illustrative and not restrictive, reference being had to the appended claims rather than to the foregoing description to indicate the scope of the invention.

What I claim is:

1. In a device of the kind described, the combination with an ink distributing drum and an ink rail having ink conducting means operably associated with the ink distributing drum, 0! an ink pump assembly detachably securable to said ink rail and operable to simultaneously close said ink conducting means while operatively connecting ink-conveying conduits secured with said assembly to the said ink-distributing drum.

2. 'The combination with inking mechanism forming a part of a printing machine having an ink-distributing drum coactingly engaged by said inking mechanism, of an ink pump assembly attachable to a portion oi. said inking mechanism, said assembly being formed to render said inking mechanism inoperative but making said pump assembly operative to convey ink therefrom to said ink-distributing drum.

3. In inking mechanism of the character described, the combination of the conventional inking means and an auxiliary inking means adapting said inking mechanism to print in at least two colors, the auxiliary inking means being adjustably and removably secured to another of said means, thereby rendering inoperative said lastmentioned means but making operative the firstmentioned means to convey ink to said drum.

4. In mechanism of the character described,

the combination with an ink rail and ink-conducting means arranged in said ink rail, of ink pumping means detachably secured to said rail, said ink pumping means rendering inoperative the ink conducting means and making operative the ink pumping means.

5. In mechanism of the character described, the combination with an ink-distributing drum, an ink rail and ink conducting means arranged .in said ink rail and operatively communicated with said drum, of ink pumping means detachably secured to the rail, a nozzle-receiving member secured to said ink pumping means, said ink pumping means seating over and sealing the ink-conducting means while conveying ink trom said nozzle-receiving member to said drum.

6. In printing mechanism of the character described, the combination with an ink rail and ink conveying means normally operably associated with an ink rail, of means for optionally printing in any one of a plurality of colors, said means including an ink pump assembly detachably and adjustably secured to said ink rail, said assembly when operatively secured to said rail rendering inoperative ink conveying mechanism normally forming a part of the said ink rail.

7. In a printing machine having inking mechanism including an ink rail and an ink distributing cylinder, an ink pump assembly detachably and operatively securable to said rail, said assembly having a member for closing ink-conducting channels normally arranged in the rail, but adapting said member to convey ink from said assembly to said cylinder, whereby said cylinders may be inked optionally by ink from said channels and from said assembly.

8. In printing mechanism of the character described, the combination with an ink distributing cylinder, an ink rail having channels therein for conveying ink to said cylinder, of a detachable ink pump assembly securable to said rail as an auxiliary thereto, said assembly conveying ink to the distributing cylinder independently of said channels, whereby said ink distributing cylinder may be supplied with ink of one color and then optionally with ink of another color.

9. In a printing machine including an ink rail and an ink distributing cylinder, an ink pump assembly separably connected to said ink rail and adapted for independent coaction with said ink distributing cylinder, said assembly having a member securable to same and coactingly engageable with said ink distributing cylinder and having openings receiving nozzles secured to the assembly, whereby ink may be conveyed independently and selectively from the ink rail and the ink pump assembly to the ink distributing cylinder.

10. In a printing machine of the character described including an ink distributing cylinder, ink conveying means and an ink rail operably interposed between the ink distributing cylinder and the ink conveying means and forming a continuation of the ink conveying means, the combination of a portable and detachable ink pump assembly including an auxiliary rail secured to the said ink rail, a source of ink supply, an ink pump operably interposed between the source of ink supply and the auxiliary rail and operably communicated with the auxiliary rail, the ink rail and auxiliary rail conveying ink to substantially the same point on the periphery of the ink distributing cylinder.

FREDERICK LAMATSCH. 

